Dripless Caulking Gun

Abstract

A dripless caulking gun comprises a low friction bushing to enhance a dripless function by allowing the rod to retract more smoothly during the “dripless” phase of operation. The bushing may be changed to accommodate either a round rod or a hex shaped rod. Novel bushing designs allow rotation of the round rods but constrain the rotation of the hex shaped rods.

What is claimed is: 
     
         1 . A caulking gun comprising:
 a) a round rod cradle bushing disposed upon a round rod low friction bushing, with the round rod cradle bushing and the round rod low friction bushing disposed upon a front surface of a universal handle.   
     
     
         2 . The caulking gun of  claim 1  further comprising:
 a) the universal handle comprising a drive pin securing a trigger return spring, a trigger axel, trigger axle rivet and universal trigger. 
 
     
     
         3 . The caulking gun of  claim 2  further comprising a cradle attached to the front surface of the universal handle. 
     
     
         4 . The caulking gun of  claim 3  further comprising:
 a) a round activator rod disposed through the universal handle; 
 b) a drive dog return spring, round rod drive dog, dripless disk and dripless disk spring in frictional attachment and disposed with in the universal handle. 
 
     
     
         5 . A caulking gun comprising:
 a) a hex rod cradle bushing disposed upon a hex rod low friction bushing, with the hex rod cradle bushing and the hex rod low friction bushing disposed upon a front surface of a universal handle.   
     
     
         6 . The caulking gun of  claim 5  further comprising:
 a) the universal handle comprising a drive pin securing a trigger return spring, a trigger axel, trigger axle rivet and universal trigger. 
 
     
     
         7 . The caulking gun of  claim 6  further comprising a cradle attached to the front surface of the universal handle. 
     
     
         8 . The caulking gun of  claim 3  further comprising:
 a) a hex activator rod disposed through the universal handle; 
 b) a drive dog return spring, hex rod drive dog, dripless disk and dripless disk spring in frictional attachment and disposed with in the universal handle.